40minutes any day, 30 days a month = 1200minutes a month

1200/60=20hours

Any month, we are losing a day in queues, but you don't give us this day.

13€ month / 30 days = 0.43€ we are paying for nothing

0.43€ · 10000 people in spinebreaker = 4300€

Only the time of the queues in 1 server gives you 4300€ in a month.

Why you don't upgrade the hardware of the server with the money. You are geting 130000€/month from any server, 154 servers (no counting the Low population servers)

130000·154=20020000€/month

counting that you spend 1000€/month in the maintenance of one server, you spend 154000€ in maintenace of servers.

20020000-154000=19'866'000€/month I don't know how many people have you got working, but 20 millions of € are suficient to pay to all your employers, and to upgrade the hardware of all servers.